Improvement in oil-stills



E. WESTON, Oil-Still.

No. 219,546;` I vPmnwpl sept. 9,1879.4

Figa' MPEERS. PHOTD-LITHDGRAPHER. WASHINGTON- D. C.

UNITED STATEs PATENT OEEIOE.

ELIJAH WESTON, OF BUFFALO, NEW YORK.

IMPROVEMENT IN OIL-STILLS.

Specification forming part of Letters Patent No. 219.546, dated September 9, 1879; application filed July 3, 1879.

. had to the accompanying drawings, forming a part of this specification, in which- Figure 1 represents a longitudinal vertical section, and Fig. 2 a transverse vertical section on the line Fig. l, of a still embodying my invention.

The invention relates to stills for separatingl the hydrocarbon products from crude petroleum and other volatile oils by the application of heat; and the object of this invention is to promote the circulation ot' the Oil during its volatilization.

The invention consists in arranging rigid partition-plates within the oil-space Ot the still adjacent to the heating-surfaces, so as to separate that portion ofthe oil in contact with the heating-surface from the portion next the exterior shell, said plates being Open at their edges to permit a free passage of the Oil, and whereby a constant'circulation Of the same is maintained-and every particle brought in ra-pid and direct contact with the heating-surfaces in divided quantities.

To enable Others to understand and use my l invention, l will rst proceed to describe the same, and subsequently to point out in the claim its novel features.

In the accompanying drawingsl have shown an ordinary type of still to which my invention is applied; but I wish it to be understood that I do not confine myself to this particular form, as my said invention may be used in connection with other types of stills for such purpose without departing from the principle involved.

A represents the shell of a still,`which may be set inbrick-work, as shown, to form a furnace. B, and the usual connections with the uptake.

The shell A is cylindrical in form, and provided with a series of tire-tubes, a a, distributed at about equal distances from each other, passing longitudinally through the saine, and connecting the combustion-chamber c and uptake.

D represents a sliding gate, arranged with-Q in the combustion-chamber c, as shown, to opcrate to close the upper. tiers of fire-tubes when the quantity of oil within the still has been reduced by vaporization below the level thereof.

b b represent the partition-plates, which are generally composed of thin sheets of iron Or steel, and bent to cont'orm to the contour of the adjacentheating-surface. These plates should be located at such distance from the heatinging-surface from the remaining and greater portion, which produces a variation in the temperature of the separated portions. llhe part neXt the heatin g-surface, bein gof a higher temperature, naturally rises, and its place is supplied from below by the outer part. This action creates a constant circulation of the oil, and causes every portion contained in the still to flow in a reduced quantity in direct contact with the heating-surfaces, so that every particle of the oil is subjected to the highest degree of heat contained in the still, which produces a rapid and perfect volatilization.

In this explanation of the operation of my invention it is not deemed necessary to illustrate or describe the usual adjuncts of these` forth.

ELIJAH WESTON.

Witnesses:

CHAs. W. FORBES, EDWARD R. JONES. 

